WO2022073161A1 - Transmitting synchronization signal block via reconfigurable intelligent surfaces - Google Patents

Transmitting synchronization signal block via reconfigurable intelligent surfaces Download PDF

Info

Publication number
WO2022073161A1
WO2022073161A1 PCT/CN2020/119863 CN2020119863W WO2022073161A1 WO 2022073161 A1 WO2022073161 A1 WO 2022073161A1 CN 2020119863 W CN2020119863 W CN 2020119863W WO 2022073161 A1 WO2022073161 A1 WO 2022073161A1
Authority
WO
WIPO (PCT)
Prior art keywords
synchronization signal
type
signal block
synchronization
raster grid
Prior art date
Application number
PCT/CN2020/119863
Other languages
English (en)
French (fr)
Inventor
Yu Zhang
Hung Dinh LY
Jinseok Choi
Krishna Kiran Mukkavilli
Hwan Joon Kwon
Tingfang Ji
Naga Bhushan
Original Assignee
Qualcomm Incorporated
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qualcomm Incorporated filed Critical Qualcomm Incorporated
Priority to PCT/CN2020/119863 priority Critical patent/WO2022073161A1/en
Priority to CN202080105816.4A priority patent/CN116724609A/zh
Priority to US18/042,590 priority patent/US20230337158A1/en
Priority to EP20956476.4A priority patent/EP4226693A4/en
Publication of WO2022073161A1 publication Critical patent/WO2022073161A1/en

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H04W56/0015—Synchronization between nodes one node acting as a reference for the others
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0695—Hybrid systems, i.e. switching and simultaneous transmission using beam selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/04013—Intelligent reflective surfaces
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H04J11/0069—Cell search, i.e. determining cell identity [cell-ID]
    • H04J11/0073—Acquisition of primary synchronisation channel, e.g. detection of cell-ID within cell-ID group
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H04J11/0069—Cell search, i.e. determining cell identity [cell-ID]
    • H04J11/0076—Acquisition of secondary synchronisation channel, e.g. detection of cell-ID group
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H04J11/0069—Cell search, i.e. determining cell identity [cell-ID]
    • H04J11/0086—Search parameters, e.g. search strategy, accumulation length, range of search, thresholds
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver

Definitions

  • the described techniques relate to improved methods, systems, devices, and apparatuses that support transmitting synchronization signal block (SSBs) via reconfigurable intelligent surfaces (RISs) .
  • SSBs synchronization signal block
  • RISs reconfigurable intelligent surfaces
  • the described techniques provide for performing initial access procedures including transmitting or receiving SSBs, which may include synchronization and system information along with other information, based on a capability of a UE to use RISs.
  • a base station may transmit SSBs using two synchronization raster grids. For example, the base station may transmit SSBs on a first synchronization raster grid for UEs that do not support RISs (e.g., legacy UEs) and on a second synchronization raster grid for UEs that support RISs.
  • RISs reconfigurable intelligent surfaces
  • Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for refraining from scanning one or more frequency positions in the second synchronization raster grid based on receiving the at least one synchronization signal block at the one or more frequency positions in the first synchronization raster grid.
  • Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for receiving, from a base station, an indication of one of the first synchronization raster grid or the second synchronization raster grid that the UE may be to use for receiving the one or more synchronization signal blocks, where monitoring the one or more resource elements may be based on receiving the indication.
  • monitoring the one or more resource elements may include operations, features, means, or instructions for scanning at least one frequency position in the synchronization raster grid for a synchronization signal block of the first type, where receiving at least the one synchronization signal block includes receiving a synchronization signal block of the first type based on scanning at least the one frequency position.
  • Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for determining that a priority associated with the first type of synchronization signal block may be different than a priority associated with the second type of synchronization signal block, where monitoring the one or more resource elements may be based on the determining.
  • configuring the one or more resource elements may include operations, features, means, or instructions for configuring resource elements at one or more frequency positions in the first synchronization raster grid, and configuring resource elements at one or more frequency positions in the second synchronization raster grid
  • transmitting the one or more synchronization signal blocks may include operations, features, means, or instructions for transmitting the one or more synchronization signal blocks using the resource elements at the one or more frequency positions in the first synchronization raster grid and the resource elements at the one or more frequency positions in the second synchronization raster grid.
  • a non-transitory computer-readable medium storing code for wireless communications at a base station is described.
  • the code may include instructions executable by a processor to identify a first type of synchronization signal block and a second type of synchronization signal block that are associated with a same synchronization raster grid and for transmitting by the base station, where the second type of synchronization signal block is associated with a reconfiguration intelligent surface, configure one or more resource elements for transmitting the one or more synchronization signal blocks including one or more of the first type of synchronization signal block or the second type of synchronization signal block, and transmit the one or more synchronization signal blocks using the one or more configured resource elements.
  • identifying the first mapping order and the second mapping order may include operations, features, means, or instructions for identifying a first decreasing mapping order of a demodulation reference signal associated with the first type of synchronization signal block and a second increasing mapping order of a demodulation reference signal associated with the second type of synchronization signal block.
  • FIG. 4 illustrates an example of a process flow that supports transmitting one or more synchronization signal blocks via one or more reconfigurable intelligent surfaces in accordance with aspects of the present disclosure.
  • FIGs. 8 and 9 show block diagrams of devices that support transmitting one or more synchronization signal blocks via one or more reconfigurable intelligent surfaces in accordance with aspects of the present disclosure.
  • FIG. 11 shows a diagram of a system including a device that supports transmitting one or more synchronization signal blocks via one or more reconfigurable intelligent surfaces in accordance with aspects of the present disclosure.
  • aspects of the disclosure are initially described in the context of wireless communications systems. Aspects of the disclosure are further described in the context of process flows and resource mapping schemes. Aspects of the disclosure are further illustrated by and described with reference to apparatus diagrams, system diagrams, and flowcharts that relate to transmitting SSB via RISs.
  • the base stations 105 may communicate with the core network 130, or with one another, or both.
  • the base stations 105 may interface with the core network 130 through one or more backhaul links 120 (e.g., via an S1, N2, N3, or other interface) .
  • the base stations 105 may communicate with one another over the backhaul links 120 (e.g., via an X2, Xn, or other interface) either directly (e.g., directly between base stations 105) , or indirectly (e.g., via core network 130) , or both.
  • the backhaul links 120 may be or include one or more wireless links.
  • a UE 115 may include or may be referred to as a mobile device, a wireless device, a remote device, a handheld device, or a subscriber device, or some other suitable terminology, where the “device” may also be referred to as a unit, a station, a terminal, or a client, among other examples.
  • a UE 115 may also include or may be referred to as a personal electronic device such as a cellular phone, a personal digital assistant (PDA) , a tablet computer, a laptop computer, or a personal computer.
  • PDA personal digital assistant
  • Each physical layer channel may carry acquisition signaling (e.g., synchronization signals, system information) , control signaling that coordinates operation for the carrier, user data, or other signaling.
  • the wireless communications system 100 may support communication with a UE 115 using carrier aggregation or multi-carrier operation.
  • a UE 115 may be configured with multiple downlink component carriers and one or more uplink component carriers according to a carrier aggregation configuration.
  • Carrier aggregation may be used with both frequency division duplexing (FDD) and time division duplexing (TDD) component carriers.
  • FDD frequency division duplexing
  • TDD time division duplexing
  • Signal waveforms transmitted over a carrier may be made up of multiple subcarriers (e.g., using multi-carrier modulation (MCM) techniques such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform spread OFDM (DFT-S-OFDM) ) .
  • MCM multi-carrier modulation
  • OFDM orthogonal frequency division multiplexing
  • DFT-S-OFDM discrete Fourier transform spread OFDM
  • a resource element may consist of one symbol period (e.g., a duration of one modulation symbol) and one subcarrier, where the symbol period and subcarrier spacing are inversely related.
  • the number of bits carried by each resource element may depend on the modulation scheme (e.g., the order of the modulation scheme, the coding rate of the modulation scheme, or both) .
  • Time intervals of a communications resource may be organized according to radio frames each having a specified duration (e.g., 10 milliseconds (ms) ) .
  • Each radio frame may be identified by a system frame number (SFN) (e.g., ranging from 0 to 1023) .
  • SFN system frame number
  • the wireless communications system 100 may support synchronous or asynchronous operation.
  • the base stations 105 may have similar frame timings, and transmissions from different base stations 105 may be approximately aligned in time.
  • the base stations 105 may have different frame timings, and transmissions from different base stations 105 may, in some examples, not be aligned in time.
  • the techniques described herein may be used for either synchronous or asynchronous operations.
  • the control plane entity may manage non-access stratum (NAS) functions such as mobility, authentication, and bearer management for the UEs 115 served by the base stations 105 associated with the core network 130.
  • NAS non-access stratum
  • User IP packets may be transferred through the user plane entity, which may provide IP address allocation as well as other functions.
  • the user plane entity may be connected to IP services 150 for one or more network operators.
  • the IP services 150 may include access to the Internet, Intranet (s) , an IP Multimedia Subsystem (IMS) , or a Packet-Switched Streaming Service.
  • Some signals may be transmitted by a base station 105 in a single beam direction (e.g., a direction associated with the receiving device, such as a UE 115) .
  • the beam direction associated with transmissions along a single beam direction may be determined based on a signal that was transmitted in one or more beam directions.
  • a UE 115 may receive one or more of the signals transmitted by the base station 105 in different directions and may report to the base station 105 an indication of the signal that the UE 115 received with a highest signal quality or an otherwise acceptable signal quality.
  • the base station 105 may transmit a reference signal (e.g., a cell-specific reference signal (CRS) , a channel state information reference signal (CSI-RS) ) , which may be precoded or unprecoded.
  • a reference signal e.g., a cell-specific reference signal (CRS) , a channel state information reference signal (CSI-RS)
  • CRS cell-specific reference signal
  • CSI-RS channel state information reference signal
  • the UE 115 may provide feedback for beam selection, which may be a precoding matrix indicator (PMI) or codebook-based feedback (e.g., a multi-panel type codebook, a linear combination type codebook, a port selection type codebook) .
  • PMI precoding matrix indicator
  • codebook-based feedback e.g., a multi-panel type codebook, a linear combination type codebook, a port selection type codebook
  • the UE 115-a or the UE 115-b may differentiate the types of SSB or may select a type of SSB to use based on receiving the indication.
  • the indication may include any number of bits corresponding to a number of types of SSBs (e.g., may indicate one, two, or more types of SSBs) .
  • the two types of SSBs may not be unique to the UE 115-a or the UE 115-b, but rather may be used by any number of UEs 115 using a path or a channel similar to one of the channels used by the UE 115-a or the UE 115-b (or both) .
  • the base station 105-a may enable the UE 115-a or the UE 115-b to determine whether a connection established with the base station 105-a uses the RIS 225 and to receive one or more SSBs that may include synchronization and system information, among other advantages.
  • Implementing one or more aspects of the present disclosure may enable the wireless communications system 200 to support both connections between base stations 105 and UEs 115 that support using the RIS 225 and connections between base stations 105 and UEs 115 that do not support using the RIS 225.
  • the UE 115-c may experience an obstructed path or channel between the UE 115-c and the base station 105-b and the UE 115-d may experience an unobstructed path or channel between the UE 115-d and the base station 105-b.
  • the UE 115-c may be an example of a UE 115 that supports using an RIS for communication with the base station 105-b.
  • the UE 115-d may be an example of a UE 115 (e.g., a legacy UE 115) that does not support using an RIS.
  • Alternative examples of the following may be implemented where some processes are performed in a different order than described or not performed at all. In some implementations, processes may include additional features not mentioned below, or further processes may be added
  • the base station 105-b may transmit an indication of a synchronization raster grid that the UE 115-c or UE 115-d (or both) is to use for receiving an SSB.
  • the base station 105-b may indicate the UE 115-c to search the first or second synchronization raster grid for an SSB.
  • the base station 105-b may transmit an indication that the second synchronization raster grid is to use for receiving an SSB when one or more RISs is being used.
  • the UE 115-c or the UE 115-d may determine to search the first or second synchronization raster grid based on receiving the indication that the second synchronization raster grid is associated with an RIS.
  • the base station 105-b may not transmit the indications if the UE 115-c or the UE 115-d (or both) is operating in an idle mode (e.g., RRC non-connected or idle mode) .
  • the UE 115-c, the UE 115-d, and the base station 105-b may identify a first synchronization raster grid and a second synchronization raster grid for transmitting or receiving SSBs.
  • the first synchronization raster grid i.e., Raster 0
  • the second raster grid i.e., Raster 1
  • the second raster grid may be used by UEs 115 that may use an RIS to establish connection with a base station 105 in the presence of an obstructed path or channel between the UEs 115 and the base station 105.
  • the UE 115-c may be capable to use both the first and second types of SSB, but the UE 115-d may capable to use only the first type of SSB.
  • the first and second types of SSB may differ in a location (i.e., in a time or frequency location) , order, etc. of synchronization or reference signals associated with an SSB.
  • the first and second types of SSB may be transmitted (e.g., broadcast) by a base station 105 using a same synchronization raster grid.
  • FIG. 5B illustrates a resource mapping scheme 500-b which may correspond to a second type of SSB (i.e., a Type 1 SSB) .
  • a PSS may be mapped to resource elements located later in time than resource elements associated with a PBCH DMRS, an SSS, etc.
  • a Type 0 SSB may be distinguished from a Type 1 SSB based on a location of a PSS associated with the SSBs.
  • any combination of UEs 115 or base stations 105 may identify the first and second types of SSB based on determining locations (e.g., time locations) of a PSS in each type of SSB.
  • FIG. 8 shows a block diagram 800 of a device 805 that supports transmitting one or more SSBs via one or more RISs in accordance with aspects of the present disclosure.
  • the device 805 may be an example of aspects of a UE 115 as described herein.
  • the device 805 may include a receiver 810, a communications manager 815, and a transmitter 820.
  • the device 805 may also include a processor. Each of these components may be in communication with one another (e.g., via one or more buses) .
  • the communications manager 915 may be an example of aspects of the communications manager 815 as described herein.
  • the communications manager 915 may include a synchronization raster manager 920, a resource monitor 925, a SSB receiver 930, and a type manager 935.
  • the communications manager 915 may be an example of aspects of the communications manager 1110 described herein.
  • the synchronization raster manager 920 may identify a first synchronization raster grid and a second synchronization raster grid for use by the UE to receive one or more SSBs, the second synchronization raster grid including frequency positions associated with an RIS.
  • FIG. 10 shows a block diagram 1000 of a communications manager 1005 that supports transmitting one or more SSBs via one or more RISs in accordance with aspects of the present disclosure.
  • the communications manager 1005 may be an example of aspects of a communications manager 815, a communications manager 915, or a communications manager 1110 described herein.
  • the communications manager 1005 may include a synchronization raster manager 1010, a resource monitor 1015, a SSB receiver 1020, a priority manager 1025, a raster indication receiver 1030, an RIS indication receiver 1035, a type manager 1040, and a type indication receiver 1045. Each of these modules may communicate, directly or indirectly, with one another (e.g., via one or more buses) .
  • the resource monitor 1015 may monitor one or more resource elements for the one or more SSBs based on one or more of the first synchronization raster grid or the second synchronization raster grid.
  • the resource monitor 1015 may monitor one or more resource elements for the one or more SSBs including one or more of the first type of SSB or the second type of SSB.
  • the SSB receiver 1020 may receive at least one SSB based on monitoring the one or more resource elements. In some examples, the SSB receiver 1020 may receive at least one SSB of the first type or the second type based on monitoring the one or more REs.
  • the type manager 1040 may identify a first mapping order of a secondary synchronization signal associated with the first type of SSB and a second mapping order of a secondary synchronization signal associated with the second type of SSB.
  • the Priority Manager 1025 may determine that a priority associated with the first type of SSB is different than a priority associated with the second type of SSB, where monitoring the one or more resource elements is based on the determining. In some examples, the Priority Manager 1025 may determine that the priority associated with the first type of SSB is higher than the priority associated with the priority associated with the second type of SSB. In some examples, the Priority Manager 1025 may determine that the priority associated with the first type of SSB is lower than the priority associated with the priority associated with the second type of SSB.
  • the raster indication receiver 1030 may receive, from a base station, an indication of one of the first synchronization raster grid or the second synchronization raster grid that the UE is to use for receiving the one or more SSBs, where monitoring the one or more resource elements is based on receiving the indication.
  • the type indication receiver 1045 may receive, from a base station, an indication of one of the first type of SSB or the second type of SSB, where monitoring the one or more resource elements is based on receiving the indication.
  • the Type Indication Receiver 1045 may receive a master information block from a base station including the indication.
  • the transceiver 1120 may communicate bi-directionally, via one or more antennas, wired, or wireless links as described above.
  • the transceiver 1120 may represent a wireless transceiver and may communicate bi-directionally with another wireless transceiver.
  • the transceiver 1120 may also include a modem to modulate the packets and provide the modulated packets to the antennas for transmission, and to demodulate packets received from the antennas.
  • the processor 1140 may include an intelligent hardware device, (e.g., a general-purpose processor, a DSP, a central processing unit (CPU) , a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof) .
  • the processor 1140 may be configured to operate a memory array using a memory controller.
  • a memory controller may be integrated into the processor 1140.
  • the processor 1140 may be configured to execute computer-readable instructions stored in a memory (e.g., the memory 1130) to cause the device 1105 to perform various functions (e.g., functions or tasks supporting transmitting SSB via RISs) .
  • the SSB transmitter 1330 may transmit the one or more SSBs using the one or more configured resource elements.
  • the resource component 1415 may configure resource elements at one or more frequency positions in the first synchronization raster grid. In some examples, the resource component 1415 may configure resource elements at one or more frequency positions in the second synchronization raster grid, where transmitting the one or more SSBs includes transmitting the one or more SSBs using the resource elements at the one or more frequency positions in the first synchronization raster grid and the resource elements at the one or more frequency positions in the second synchronization raster grid.
  • the raster indication transmitter 1425 may transmit, to one or more UEs, an indication of one of the first synchronization raster grid or the second synchronization raster grid for the UEs to use for receiving the one or more SSBs, where configuring the one or more resource elements is based on the indication.
  • the processor 1540 may include an intelligent hardware device, (e.g., a general-purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof) .
  • the processor 1540 may be configured to operate a memory array using a memory controller.
  • a memory controller may be integrated into processor 1540.
  • the processor 1540 may be configured to execute computer-readable instructions stored in a memory (e.g., the memory 1530) to cause the device 1505 to perform various functions (e.g., functions or tasks supporting transmitting SSB via RISs) .
  • the inter-station communications manager 1545 may manage communications with other base station 105, and may include a controller or scheduler for controlling communications with UEs 115 in cooperation with other base stations 105. For example, the inter-station communications manager 1545 may coordinate scheduling for transmissions to UEs 115 for various interference mitigation techniques such as beamforming or joint transmission. In some examples, the inter-station communications manager 1545 may provide an X2 interface within an LTE/LTE-A wireless communication network technology to provide communication between base stations 105.
  • the UE may identify a first synchronization raster grid and a second synchronization raster grid for use by the UE to receive one or more SSBs, the second synchronization raster grid including frequency positions associated with an RIS.
  • the operations of 1605 may be performed according to the methods described herein. In some examples, aspects of the operations of 1605 may be performed by a synchronization raster manager as described with reference to FIGs. 8 through 11.
  • the UE may fail to detect the one or more SSBs at the one or more frequency positions in the first synchronization raster grid.
  • the operations of 1715 may be performed according to the methods described herein. In some examples, aspects of the operations of 1715 may be performed by a resource monitor as described with reference to FIGs. 8 through 11.
  • FIG. 18 shows a flowchart illustrating a method 1800 that supports transmitting one or more SSBs via one or more RISs in accordance with aspects of the present disclosure.
  • the operations of method 1800 may be implemented by a UE 115 or its components as described herein.
  • the operations of method 1800 may be performed by a communications manager as described with reference to FIGs. 8 through 11.
  • a UE may execute a set of instructions to control the functional elements of the UE to perform the functions described below. Additionally or alternatively, a UE may perform aspects of the functions described below using special-purpose hardware.
  • the base station may configure one or more resource elements for transmitting the one or more SSBs based on the first synchronization raster grid and second synchronization raster grid.
  • the operations of 2010 may be performed according to the methods described herein. In some examples, aspects of the operations of 2010 may be performed by a resource component as described with reference to FIGs. 12 through 15.
  • the base station may transmit the one or more SSBs using the one or more configured REs.
  • the operations of 2015 may be performed according to the methods described herein. In some examples, aspects of the operations of 2015 may be performed by an SSB Transmitter as described with reference to FIGs. 12 through 15.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
PCT/CN2020/119863 2020-10-08 2020-10-08 Transmitting synchronization signal block via reconfigurable intelligent surfaces WO2022073161A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PCT/CN2020/119863 WO2022073161A1 (en) 2020-10-08 2020-10-08 Transmitting synchronization signal block via reconfigurable intelligent surfaces
CN202080105816.4A CN116724609A (zh) 2020-10-08 2020-10-08 经由可重配置的智能表面来传送同步信号块
US18/042,590 US20230337158A1 (en) 2020-10-08 2020-10-08 Transmitting synchronization signal block via reconfigurable intelligent surfaces
EP20956476.4A EP4226693A4 (en) 2020-10-08 2020-10-08 TRANSMISSION OF A SYNCHRONIZATION SIGNAL BLOCK OVER RECONFIGURABLE INTELLIGENT SURFACES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/119863 WO2022073161A1 (en) 2020-10-08 2020-10-08 Transmitting synchronization signal block via reconfigurable intelligent surfaces

Publications (1)

Publication Number Publication Date
WO2022073161A1 true WO2022073161A1 (en) 2022-04-14

Family

ID=81125692

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/119863 WO2022073161A1 (en) 2020-10-08 2020-10-08 Transmitting synchronization signal block via reconfigurable intelligent surfaces

Country Status (4)

Country Link
US (1) US20230337158A1 (zh)
EP (1) EP4226693A4 (zh)
CN (1) CN116724609A (zh)
WO (1) WO2022073161A1 (zh)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023206120A1 (en) * 2022-04-27 2023-11-02 Qualcomm Incorporated Cooperative relaying by ris and relay ue
WO2023245650A1 (en) * 2022-06-24 2023-12-28 Zte Corporation Information design and signaling for reconfigurable intelligent surface
WO2024071459A1 (ko) * 2022-09-27 2024-04-04 엘지전자 주식회사 무선 통신 시스템에서 신호 송수신 방법 및 장치
WO2024101827A1 (ko) * 2022-11-08 2024-05-16 삼성전자 주식회사 지능형 반사판을 이용하는 통신의 설정 방법 및 장치

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019048483A1 (en) * 2017-09-11 2019-03-14 Nokia Technologies Oy INDICATION OF SYNCHRONIZATION SIGNAL BLOCK FOR WIRELESS NETWORKS
WO2019157727A1 (zh) * 2018-02-14 2019-08-22 Oppo广东移动通信有限公司 指示方法、检测方法及相关设备
WO2020055179A1 (en) * 2018-09-11 2020-03-19 Samsung Electronics Co., Ltd. Method and apparatus for advanced frequency offset indication
US20200280942A1 (en) * 2017-09-11 2020-09-03 Lg Electronics Inc. Method for receiving ssb according to synchronization raster and user equipment

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110546900B (zh) * 2017-06-04 2021-03-12 Lg 电子株式会社 用于在无线通信系统中接收系统信息的方法及其装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019048483A1 (en) * 2017-09-11 2019-03-14 Nokia Technologies Oy INDICATION OF SYNCHRONIZATION SIGNAL BLOCK FOR WIRELESS NETWORKS
US20200280942A1 (en) * 2017-09-11 2020-09-03 Lg Electronics Inc. Method for receiving ssb according to synchronization raster and user equipment
WO2019157727A1 (zh) * 2018-02-14 2019-08-22 Oppo广东移动通信有限公司 指示方法、检测方法及相关设备
WO2020055179A1 (en) * 2018-09-11 2020-03-19 Samsung Electronics Co., Ltd. Method and apparatus for advanced frequency offset indication

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
OPPO: "Discussion on synchronization raster indication", 3GPP DRAFT; R1-1800508 DISCUSSION ON SYNCHRONIZATION RASTER INDICATION, vol. RAN WG1, 13 January 2018 (2018-01-13), Vancouver, Canada, pages 1 - 3, XP051384900 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023206120A1 (en) * 2022-04-27 2023-11-02 Qualcomm Incorporated Cooperative relaying by ris and relay ue
WO2023245650A1 (en) * 2022-06-24 2023-12-28 Zte Corporation Information design and signaling for reconfigurable intelligent surface
WO2024071459A1 (ko) * 2022-09-27 2024-04-04 엘지전자 주식회사 무선 통신 시스템에서 신호 송수신 방법 및 장치
WO2024101827A1 (ko) * 2022-11-08 2024-05-16 삼성전자 주식회사 지능형 반사판을 이용하는 통신의 설정 방법 및 장치

Also Published As

Publication number Publication date
EP4226693A1 (en) 2023-08-16
CN116724609A (zh) 2023-09-08
US20230337158A1 (en) 2023-10-19
EP4226693A4 (en) 2024-07-03

Similar Documents

Publication Publication Date Title
WO2022073154A1 (en) Techniques for joint channel state information reporting for multiple transmission and reception point communication schemes
WO2021183612A1 (en) Measuring cross link interference
WO2022073161A1 (en) Transmitting synchronization signal block via reconfigurable intelligent surfaces
WO2021155505A1 (en) Repetition and time domain cover code based sounding reference signal resources for antenna switching
WO2021226956A1 (en) Monitoring for downlink repetitions
US11799604B2 (en) Techniques for adapting a number of tracking reference signal symbols
US11778641B2 (en) Configurations for sidelink beam management
WO2021015865A1 (en) Resource conflict resolution
WO2022011492A1 (en) Configuring a retuning gap and amplitude and phase continuity for sensing and wireless communications
WO2023130344A1 (en) Usage of a reconfigurable intelligent surface in wireless communications
WO2022193059A1 (en) Supplemental reconfigurable intelligent surfaces for downlink communication
WO2021047539A1 (en) Uplink transmission timing patterns
WO2021253456A1 (en) Duration alignment for physical shared channel repetitions in multi-panel transmissions
WO2022193045A1 (en) Supplemental reconfigurable intelligent surfaces for wireless communications
WO2022154932A1 (en) Reporting angular offsets across a frequency range
CN116711225A (zh) 用于多个上行链路或下行链路信道和参考信号的波束指示
EP4285667A1 (en) Resource allocation for sidelink full duplex communications
WO2021068246A1 (en) Broadcast group identifier for multicast messages
US11764931B2 (en) Adaptive user equipment-specific tracking reference signals for sub-terahertz systems
US11716124B2 (en) Dynamic spectrum sharing with spatial division multiplexing
WO2021253282A1 (en) Aligned frequency hopping
WO2022087948A1 (en) Techniques for mapping sounding reference signal resources
US20240147485A1 (en) Coordination between connected user equipments and the network
WO2023070626A1 (en) Concurrent multi-panel transmissions
WO2022198428A1 (en) Techniques for full-duplex operation on sidelink and downlink in wireless communications systems

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20956476

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 202080105816.4

Country of ref document: CN

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2020956476

Country of ref document: EP

Effective date: 20230508